GetWindowRgn (Windows CE 5.0)
This function obtains a copy of the window region of a window. The window region of a window is set by calling the SetWindowRgn function. The window region determines the area within the window where the system permits drawing. The system does not display any portion of a window that lies outside of the window region.
int GetWindowRgn( HWND hWnd, HRGN hRgn );
- Handle to the window whose window region is to be obtained.
- Receives a handle to the window region.
The return value specifies the type of the region that the function obtains. The following table shows some of the possible return values.
|NULLREGION||The region is empty.|
|SIMPLEREGION||The region is a single rectangle.|
|COMPLEXREGION||The region is more than one rectangle.|
|ERROR||An error occurred; the region is unaffected.|
The coordinates of a window's window region are relative to the upper left corner of the window, not the client area of the window.
To set the window region of a window, call the SetWindowRgn function.
OS Versions: Windows CE 2.12 and later.
Link Library: Coredll.lib, Winmgr.lib.
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